Type-writing machine.



No. 653,905. Patented July I7, 1900. A. T. BROWN.

TYPE WRITING MACHINE.

(Application filed June 17, 1897.)

(No Model.)

INVENTOR.

T VIT NE SSES.

2 NORRIS PEYERS co., Puoroumou wnsnmcrcu, n c,

NlTED STATES PATENT OFFICE.

ALEXANDER T. BROWN, OF-SYRAOUSE, NEW YORK, ASSIGN OR TO THE UNION TYPEWVRITER COMPANY, OF NEW JERSEY.

SPECIFICATION forming part of Letters Patent No. 653,905, dated July 17, 1900.

Application filed June 17, 1897.

, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention has for its main object to provide a cheap, simple, durable, and efiective ball-bearing type-bar and one in which the bearings may be readily adjusted when wear occurs; and to this end my invention consists, primarily, in the construction of typebar and of the hanger or bracket and in certain combinations of devices, all as will be hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a plan viewof a type-bar and hanger or bracket provided with ball-bearings embodying my invention. same. Fig. 3 is an enlarged horizontal section taken through the center of the hanger and the eye of the type-bar at the line .50 a; of Fig. 4:. Fig. 4 is an enlarged side elevation similar to Fig. 2.

In the several views the same part will be found designated by the same numeral of reference.

The type-bar is designated by the numeral 1 and at one end thereof is provided with a socket to receive the type 2. At near the other end the type-bar is enlarged at 3 and formed with an eye or transverse opening 4:, extending clear through the enlargement or hub 3. The said eye is formed with a ballbearing groove 5 interiorly the hub 3 and extending circularly around the same. In the present instance the ball-bearing surfaces are shown as V-shaped but the hearing may be curved or coned or of other suitable form. Extending rearwardly from the hub 3 is a short arm 6 of the type-bar, to which is attached the upper end of a connecting rod or link 7, by which the type-bar is vibrated from the key-lever, as usual.

8 designates the hanger or bracket as a whole, and in the present instance is formed of two separate side members or arms 9, both made alike. These arms or side members have each an inwardly-extending lug 10 and a curved rear extension 11.

Fig. 2 is a side elevation ofthe Serial No. 641,089. (No model.)

Ooinciding perforations are made through the side arms and the lugs for the passage therethrough of a transverse screw 12, by which the two parts of the hanger are connected together, one part being adapted to receive the threaded end of the screw and the other part counter bored to receive the head of the screw. When the screw is in place, the ends of the lugs 10 10 and the curved extensions 11 11 abut or bear against one another. But as far as the main feature of my invention is concernedthe hanger may be otherwise constructed.

At near the forward end of each hanger arm or-member is formed or provided, on the inner side thereof, a conical or tapering boss 13, the said bosses forming together a V- shaped circular hearing or race to match that within the eye of the type-bar, but oppositely arranged therefrom. Of course the bearingsurfaces on the cones or bosses instead of being straight or plane, as shown, maybe curved or rounded, if desired. Between the bearings formed by the cones or bosses and the bear ing within the eye of the type-bar is arranged a set of antifriction-balls 14, which contact with said bearings and are adapted to travel in the trackway formed by said bearings. The side bars and the bosses are perforated transversely to receive a tie-bolt or screw 15, one side of the hanger being threaded to receive the threaded end of the bolt or screw and the other side counterbored to receive the head of the screw. The bosses 13 both enter the eye in the type-bar, but their inner ends do not meet. The space intervening between the inner ends of the bosses is partially occupied by a thin sheet-metal plate or disk 16, which is formed at its edges, at suitable points, with cut-aways or notches 17 to form seats or receptacles for the balls 14. In the present case I have shown three balls only, and hence there are three notches or cut-aways in the plate or disk made equidistant one from the other. Of course, if desired, a greater number of balls may be employed; but one of the purposes of my invention is to reduce to the minimum the number of balls in the bearing for the sake of economy and for the reduction of friction. The said circular plate or disk serves as a separator for the balls and operates to hold them in fixed relation to one another. The adjusting-screw 15 passes through the centers of the bosses and the coinciding center of the ball system, as well as through a central perforation 18 in the disk, and it will be observed therefrom that when in course of time Wear takes place either on the bearings or on the balls, or both, this wear may be compensated for very readily by turning the screw inwardly, and thereby drawing the cones or bearings on the hanger closer together and nearer to the bearings in the type-bar. The cones or bearings being comparatively large, an enlarged and stable bearing is provided for the type-bar, thus insuring greater permanency of alinement. In addition the bearing or joint as a whole, while having the same advantages as a wide hanger or long trunnion type-bar pivot or hinge, is quite thin or narrow, which enables a greater number of hangers and'type-bars to be mounted side by side on a given-sized type-ring than with the ordinary trunnion-bearing construction, which is an important feature, as the type-bars and hangers of a type-writing machine must necessarily be arranged within a comparativelysmall space. Y

It will be noted that the type-bar is pivoted upon a single circular row of balls, that the type is alined by reason of the sidewise;bearing surfaces of the type-bar hanger being of enlarged diameter, and that the, type bar swings freely to and from the platen. By the described construction not only can wear be readily taken up, but the delicate original adjustment required in this class of machines can be readily secured.

The hanger is constructed in two parts, as shown, because of ease and cheapness of man ufacture and facility of assembling. This construction of hanger may be employed in connection with type bars devoid of ballbearings.

What I claim as new, and desire to secure by Letters Patent, is-

1. A type-bar for a ball bearing joint having at one end the type and at the other end an eye which is provided with a single interior annular ball-bearing groove.

2. In a type-writing machine, the combination of atype-bar having an eye and provided interiorly with a ball-bearing groove, a typebar hanger or bracket having lateral bosses extending within said eye and forming ballbearing surfaces, a set of antifriction-balls, and an adjusting device for said bearings.

3. In a type-writing machine, the combination of a type-bar having an eye and an interior ball-bearing surface, a hanger having side arms provided with oppositely-arranged tapering bosses extending within said eye, a set of antifriction-balls, and an adjusting device extending through said bosses.

at. In a type-writing machine, the combination of a type-bar having an eye formed with an interior ball-bearing surface, a hanger having side arms provided each with a tapering boss extending within said eye, a set of antifriction-balls, and an adj Listing-screw.

5. In a type-writing machine, the combination of a type-bar having an eye and an interior ball-bearing surface, a hanger composed of two side arms or members secured together between their ends and provided each at its forward end with a boss constructed to form a ball-bearing surface, a set of antifrictionballs, and an adjusting device.

6. In a type-writing machine, the combination of a type-bar having an eye and an interior bearing-surface, a type-bar hanger comprising two arms or members 9 9 having lugs 10 10, a device passing through saidlugs and securing said armsor members together, a boss constructed to form a ball-bearing surface arranged at the forward end of each of said arms or members, a set of antifrictionballs, and an adjusting device.

7. In a type-writing machine, the combination of a type-bar having an eye and an interior ball-bearing surface, a hanger comprising the arms 9 9, the abutting lugs 10 10, and

the end extensions 11 11, the transverse securing device as 12, the conical bosses as 13, the set of antifriction-balls, and an adjusting device as 15 passing through said bosses.

8. In a type-writing machine, the combination in atype-barball-bearing joint, of a typebar having ball-bearing surfaces, a hanger having ball-bearing surfaces, all of said surfaces being concentric with the axis of the type-bar joint, a set of antifriction-balls arranged between said ball-bearing surfaces, and means for holding said balls apart or in fixed relation to one another.

9. In a type-writing machine, in atype-bar ball-bearing joint, the combination of a typebar having ball-bearing surfaces, a hanger having ball-bearing surfaces, all of said surfaces being concentric with the axis of the type-bar joint, a set of antifriction-balls arranged between said ball-bearing surfaces, and a circular notched disk or plate for holding said balls apart.

10. In a type-writing machine, the combination of a type-bar having an eye anda ballbearing surface therein, a hanger havingbosses extending into said eye, a set of antifriction-balls between said bearings,a notched disk arranged between said bosses, and an adjusting device passing through said bosses and said disk.

11. A hanger for a type-bar, consisting of ICC the two side bars, having lugs 10, 10, curved V extensions 11, 11, transverse connection 12, bosses 13, 13, and adjusting-screw 15 passing through said bosses.

12. In a type-writing machine, the combination of a fixed annular race, a bar, a type arranged at one end of the bar, and a series of balls arranged in a single row at the other end of the bar and running in the annular race, for pivotally supporting the bar and for alining the type.

13. In a type-writing machine, the combination of a .stationary adjustable annular race, a bar, a type arranged at one end of the bar, and a series of balls arranged in a single row at the other end of thebar and running in the adjustable annular race, for pivotally supporting the bar and for alining the type.

14. In a type-writing machine, the combination of a hanger and a type-bar, one of which is provided with relatively-adjustable cones, and the other of which is provided with ball-bearing surfaces to cooperate with the cones, means for supporting the hanger upon the frame of the machine, means for rigidly holding the cones against separation during the movement of the type-bar, and bearing balls disposed between said cones and said ball-bearing surfaces.

15. In a type-writing machine, the combination of a hanger and a type-bar, one of which is provided with a pair of cones, and the other of which is provided with ball-bearing surfaces to cooperate with the cones, means for supporting the hanger upon the frame of the machine, a screw for efiecting the relative adjustment of the cones and for rigidly holding them against separation during the movement of the type-bar, and bearing-balls disposed between said cones and said ballbearing surfaces.

16. In a type-writing machine, the combination of a hanger and a type-bar, one of which is provided with a pair of cones, and the other of which is provided with ball-bearing surfaces to cooperate with the cones, means for supporting the hanger upon the frame of the machine, a screw passing through the cones for effecting their relative adj ustment and for rigidly holding them against separation during the movement of the typebar, and bearing-balls disposed between said cones and said ball-bearing surfaces.

17. In a type-writing machine, the combination of a cone, means for supporting the cone upon the frame of the machine, an adjacent companion cone, means for rigidly holding the cones against separation, a typebar provided with adjacent ball-bearing surfaces to codperate with the cones, and a single row of bearing-balls disposed between said cones and said type-bar ball-bearing surfaces.

18. In a type-writing machine, the combination of a hanger and a type-bar, one of which is provided with a pair of adjacent cones, and the other of which is provided with adjacent ball-bearing surfaces to cooperate with the cones, means for supporting the hanger upon the frame of the machine, a screw passing through the cones for effecting their relative adjustment and for rigidly holding them against separation during the movement of the type-bar, and a single row of bearingballs disposed between said cones and said ball-bearing surfaces.

19. In a type-writing machine, the combi nation of a hanger provided with a pair of adjacent cones, a type-bar provided with adjacent ball-bearing surfaces to cooperate with the cones, means for supporting the hanger upon the frame of the machine, a screw arranged upon the hanger and passing through the cones for efiecting their relative adjustment and for rigidly holding them against separation during the movement of the typebar, and a single row of bearing-balls disposed between said cones and said ball-bearin g surfaces.

20. In a type-writing machine, the combination of a type-bar, a forked hanger, circu larly-disposed balls arranged at the hanger for pivotally supporting the bar and for alining the type, .and a tie bolt or screw for the forks arranged at the pivotal axis.

21. In a type-writing machine, the combi= nation of a hanger comprising side bars or members having conical bearings at their ends, means for securing said side bars or members together, a type-bar having conical bearings opposite to said hanger-bearings, circularly disposed autifriction balls arranged at said bearings, and a tie-bolt or'screw for the side bars or members arranged at the pivotal axis.

22. In a type-writing machine, the combi* nation of a fixed annular race, a bar, a type arranged at one end of the bar, a series of balls arranged in a single row at the other end of the bar and running in the annular race,- for pivotally supporting the bar and for alining the type, and means for holding said balls apart or in fixed relation to one another.

Signed at New York city, in the county of New York and State of New York, this 15th day of June, A. D. 1897.

ALEXANDER T. BROWN.

Witnesses:

K. V. DONOVAN, JACOB FELBEL. 

